NCT04315324 · SWOG Cancer Research Network
Study to Test OBI-3424 in Patients With T-Cell Acute Lymphoblastic Leukemia (T-ALL) or T-Cell Lymphoblastic Lymphoma (T-LBL)
What this study is about
This phase I/II trial studies the safety, side effects and best dose of OBI-3424 and how well it works in treating patients with T-cell acute lymphoblastic leukemia or T-cell lymphoblastic lymphoma that has come back (relapsed) or does not respond to treatment (refractory).
View original scientific description
This phase I/II trial studies the safety, side effects and best dose of OBI-3424 and how well it works in treating patients with T-cell acute lymphoblastic leukemia or T-cell lymphoblastic lymphoma that has come back (relapsed) or does not respond to treatment (refractory). Chemotherapy drugs, such as OBI-3424, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading.
Interventions
DRUG
AKR1C3-activated Prodrug AST-3424
Given IV
PROCEDURE
Biopsy Procedure
Undergo biopsy
PROCEDURE
Biospecimen Collection
Undergo blood and CSF sample collection
PROCEDURE
Bone Marrow Aspiration
Undergo bone marrow aspirate
PROCEDURE
Computed Tomography
Undergo CT scan
Primary outcome measures
Maximum tolerated dose (MTD) (Phase I)
Time frame: Up to 21 days
The regimen will be considered safe and the MTD determined if the dose-limiting toxicity rate is \< 33%.
Response rate (complete remission [CR] or CR with incomplete count recovery [CRi]) (Phase II)
Time frame: Up to 5 years
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Patients must have a diagnosis of relapsed or refractory T-cell acute lymphoblastic leukemia (T-ALL) based on World Health Organization (WHO) classification. Patients with relapsed/refractory T-cell lymphoblastic lymphoma are eligible if lymphoblasts are \>= 5% in the bone marrow or in the peripheral blood by morphology or flow cytometry
- Patients must have evidence of acute leukemia in their peripheral blood or bone marrow. Patients must have \>= 5% lymphoblasts in the peripheral blood or bone marrow within 14 days prior to registration. Patients with only extramedullary disease are not eligible
- Patients ≥ 18 years of age must be refractory to or have relapsed following a standard induction chemotherapy. Patients \< 18 years of age must have relapsed or must be refractory after 2 or more chemotherapy cycles (example: induction and consolidation)
- A standard chemotherapy induction regimen is defined as any program of treatment that includes:
Where
- Birmingham, Alabama
- Kingman, Arizona
- Little Rock, Arkansas
- Arroyo Grande, California
- Duarte, California
- Loma Linda, California
- Orange, California
- Aurora, Colorado
- Wilmington, Delaware
- Fort Myers, Florida
- Hollywood, Florida
- St. Petersburg, Florida
And 85 more locations — see the full list below.
Collaborators
National Cancer Institute (NCI)
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Aug 15, 2025 · Source of record for eligibility and locations